The two women have had bad blood since 2013 when Nixon endorsed Bill de Blasio, who ended up beating Quinn to become the mayor of New York City. Nixon announced her candidacy for New York governor earlier this month.

Now Nixon has turned the offhand comment into a campaign slogan and is now selling pins on her campaign website that say “Unqualified lesbian” for a $5 contribution.

“Cynthia Nixon was opposed to having a qualified lesbian become mayor of New York City,” Quinn said after Nixon’s announcement. “Now she wants to be an unqualified lesbian to be the governor of New York. You have to be qualified and have experience. She isn’t qualified to be the governor.”

Nixon quickly shot back at a campaign event at the Stonewall Inn, opening her speech with, “Welcome, unqualified lesbians, and qualified ones too! Welcome to the trans community, welcome to queer people of every stripe, and our beautiful straight allies.”

Quinn subsequently clarified her comments in a four-part Twitter statement. “To be clear, Cynthia Nixon’s identity has no bearing on her candidacy and it was not my intention to suggest it did,” Quinn said. “I want to be clear about that. I would never, EVER, criticize someone because of their identity.”